Overclock.net › Forums › Components › Monitors and Displays › ACER Predator X34 Owners Club
New Posts  All Forums:Forum Nav:

ACER Predator X34 Owners Club - Page 46

post #451 of 3066
I just started seeing banding on grey/blacks. Image is below was a screenshot of gradient fill in photoshop. Are you guys able to see the yellow bands in the gradient? is this normal? I don't think I have had these on my dell ultrasharp.




so I took a few pictures after realising the bands in the above picture are only visible on x34 and not my laptop/phone's screens
ok the above image looks llike this on x34:




on my laptop's screen it looks like this:


Edited by kot0005 - 11/17/15 at 10:54pm
V 5 - Caselabs
(17 items)
 
V4
(18 items)
 
V3
(3 items)
 
CPUMotherboardGraphicsRAM
i7 4790K Maximus VII Formula EVGA GTX 980Ti Classified Crucial Ballistix Elite 
Hard DriveHard DriveHard DriveHard Drive
Samsung SM951 AHCI  Crucial MX 100 WD red Seagate 
CoolingMonitorKeyboardPower
Custom watercooling loop Asus ROG swift PG279Q Corsair k95 RGB MEchanical keyboard Corsair AX860i 
CaseMouseMouse PadAudio
Caselabs SMA8 Black logitech G502 Proteus  Razer firefly and corsair XXL Keyboard mouse mat. Swan M50w 2.1 channel sound system 
Audio
Asus Xonar Phoebus sound card 
CPUMotherboardGraphicsRAM
i7 4790k maximus VII formula Watchdogs GTX 980 Classified Crucial Ballistix Elite 1866 16gb 
Hard DriveHard DriveHard DriveHard Drive
Crucial MX 100 512GB WD red 3TB Seagate Barracuda 1TB Samsung 1TB 
CoolingOSMonitorKeyboard
Primochill water cooling gear with EK waterblocks Windows 8.1 Dell 24" ultrasharp Corsair Mechanical 
PowerCaseMouseMouse Pad
Corsair AX 860i Corsair 900D Logitech proteus G502 Roccat Raivo 
AudioOther
Asus Xonar Phoebus Swan M50w 2.1 speaker system 
CPUMotherboardGraphics
i7 3770k Asus Maximus 6 Formula AC3 R9 290X 
  hide details  
Reply
V 5 - Caselabs
(17 items)
 
V4
(18 items)
 
V3
(3 items)
 
CPUMotherboardGraphicsRAM
i7 4790K Maximus VII Formula EVGA GTX 980Ti Classified Crucial Ballistix Elite 
Hard DriveHard DriveHard DriveHard Drive
Samsung SM951 AHCI  Crucial MX 100 WD red Seagate 
CoolingMonitorKeyboardPower
Custom watercooling loop Asus ROG swift PG279Q Corsair k95 RGB MEchanical keyboard Corsair AX860i 
CaseMouseMouse PadAudio
Caselabs SMA8 Black logitech G502 Proteus  Razer firefly and corsair XXL Keyboard mouse mat. Swan M50w 2.1 channel sound system 
Audio
Asus Xonar Phoebus sound card 
CPUMotherboardGraphicsRAM
i7 4790k maximus VII formula Watchdogs GTX 980 Classified Crucial Ballistix Elite 1866 16gb 
Hard DriveHard DriveHard DriveHard Drive
Crucial MX 100 512GB WD red 3TB Seagate Barracuda 1TB Samsung 1TB 
CoolingOSMonitorKeyboard
Primochill water cooling gear with EK waterblocks Windows 8.1 Dell 24" ultrasharp Corsair Mechanical 
PowerCaseMouseMouse Pad
Corsair AX 860i Corsair 900D Logitech proteus G502 Roccat Raivo 
AudioOther
Asus Xonar Phoebus Swan M50w 2.1 speaker system 
CPUMotherboardGraphics
i7 3770k Asus Maximus 6 Formula AC3 R9 290X 
  hide details  
Reply
post #452 of 3066
Quote:
Originally Posted by CallsignVega View Post

P1120189.JPG


My best guess on the scan line issue is how the G-Sync module is packaged on this PCB chassis.

In the above photo, you have the LED backlight power leads (two curved black wires reaching bottom corners), the left white ribbon cable is the OSD control board, the tan ribbon cable running those silly lip LED's, red/black wires running the crappy speaker (black box at bottom), the DC voltage input from power supply in the center just below the three input capacitors. Under that speaker will be the panel LVDS/LCD flex screen ribbon cables.

Since the scan lines decrease as the G-Sync operating frequency increases, at lower frequencies there is some interference between components talking to one another or within close proximity to one another. I am almost positive it will require a hardware fix, whether it's as simple as putting a choke on there or a ferrite core, new filter inductor, isolation boundary wasn't designed right or something similar. Nothing firmware could fix.

Thanks for the details on what cable does what on the tft central picture.

Just to bounce ideas around, interference is generally random noise and so if the lcd was displaying scan lines that are moving up and down or are random or are wavy lines, then it would be easy to conclude that it was interference.

I too saw that tftcentral picture long back and wondered if the speaker's small magnets were causing some kind of steady interference. But turning the volume down to 0 on the OSD has no impact on the scanlines and playing something on the speakers at full volume doesn't vary the scanlines either.

"at lower frequencies there is some interference" still doesn't explain how if i set 100Hz in the OC OSD and have 50Hz in the NVCP I see scanlines (even on the desktop) BUT if I set OSD OC to off and set 50Hz in the NVCP, I have no scanlines.

No, this can't be plain old random noise interference between components and/or signal lines. The scanlines are too persistent, reproducible and have a clearly defined behavior.

The ripple from the adapter is also consistent and reproducible too. It is also free of random noise and is of a very low frequency. Which is why I was prone to linking it with scanlines. I agree it is a stretch as I can't explain how it eventually enters the TCON board and the row/column drivers. But if they are linked, at higher loads, the adapter ripple performance is usually better and so we don't get scanlines at higher refreshes (which I presume are higher loads).

Moreover, the ripple could be causing the coil whine people have been complaining about. I've been so focused on scanlines that I didn't think about other problems. I bet if the adapter was changed out those experiencing the coil whine sound will no longer have it.
post #453 of 3066
I have nothing to add to the technical talk, but on a spiritual level I've decided to keep the monitor. I'm hoping that Acer will address this issue soon. Thank you.
post #454 of 3066
Quote:
Originally Posted by kot0005 View Post

I just started seeing banding on grey/blacks. Image is below was a screenshot of gradient fill in photoshop. Are you guys able to see the yellow bands in the gradient? is this normal? I don't think I have had these on my dell ultrasharp.




so I took a few pictures after realising the bands in the above picture are only visible on x34 and not my laptop/phone's screens
ok the above image looks llike this on x34:




on my laptop's screen it looks like this:



Can you try some other software for viewing the gray gradient image other than windows photo viewer? I used the grey gradient here http://imgur.com/a/dqgIK#0 and while viewing the image in the browser doesn't show a banding, windows photo viewer shows me slight banding. Software related?

See here: http://i.imgur.com/mcwkOaF.jpg YOu can see banding on my screen when i open the gradient test image with windows photo viewer. But if I open it in irfanviewer and place it at the exact same location on my desktop, I dont have that banding.
Edited by Mountainlifter - 11/18/15 at 12:12am
post #455 of 3066
Hi, Mountainlifer. The yellow bands show up on a lot of applications. Photoshop, windows image viewer, web browsers and Its quite noticeable in Fallout 4 where the horizon merges with the sky.

I took some photos of the imgur gradients with my camera for you. Do you see banding on the 2nd image? the blue one? Is the blue image a gradient because I don't see bands in solid blue screens.

http://imgur.com/a/VLPPw
V 5 - Caselabs
(17 items)
 
V4
(18 items)
 
V3
(3 items)
 
CPUMotherboardGraphicsRAM
i7 4790K Maximus VII Formula EVGA GTX 980Ti Classified Crucial Ballistix Elite 
Hard DriveHard DriveHard DriveHard Drive
Samsung SM951 AHCI  Crucial MX 100 WD red Seagate 
CoolingMonitorKeyboardPower
Custom watercooling loop Asus ROG swift PG279Q Corsair k95 RGB MEchanical keyboard Corsair AX860i 
CaseMouseMouse PadAudio
Caselabs SMA8 Black logitech G502 Proteus  Razer firefly and corsair XXL Keyboard mouse mat. Swan M50w 2.1 channel sound system 
Audio
Asus Xonar Phoebus sound card 
CPUMotherboardGraphicsRAM
i7 4790k maximus VII formula Watchdogs GTX 980 Classified Crucial Ballistix Elite 1866 16gb 
Hard DriveHard DriveHard DriveHard Drive
Crucial MX 100 512GB WD red 3TB Seagate Barracuda 1TB Samsung 1TB 
CoolingOSMonitorKeyboard
Primochill water cooling gear with EK waterblocks Windows 8.1 Dell 24" ultrasharp Corsair Mechanical 
PowerCaseMouseMouse Pad
Corsair AX 860i Corsair 900D Logitech proteus G502 Roccat Raivo 
AudioOther
Asus Xonar Phoebus Swan M50w 2.1 speaker system 
CPUMotherboardGraphics
i7 3770k Asus Maximus 6 Formula AC3 R9 290X 
  hide details  
Reply
V 5 - Caselabs
(17 items)
 
V4
(18 items)
 
V3
(3 items)
 
CPUMotherboardGraphicsRAM
i7 4790K Maximus VII Formula EVGA GTX 980Ti Classified Crucial Ballistix Elite 
Hard DriveHard DriveHard DriveHard Drive
Samsung SM951 AHCI  Crucial MX 100 WD red Seagate 
CoolingMonitorKeyboardPower
Custom watercooling loop Asus ROG swift PG279Q Corsair k95 RGB MEchanical keyboard Corsair AX860i 
CaseMouseMouse PadAudio
Caselabs SMA8 Black logitech G502 Proteus  Razer firefly and corsair XXL Keyboard mouse mat. Swan M50w 2.1 channel sound system 
Audio
Asus Xonar Phoebus sound card 
CPUMotherboardGraphicsRAM
i7 4790k maximus VII formula Watchdogs GTX 980 Classified Crucial Ballistix Elite 1866 16gb 
Hard DriveHard DriveHard DriveHard Drive
Crucial MX 100 512GB WD red 3TB Seagate Barracuda 1TB Samsung 1TB 
CoolingOSMonitorKeyboard
Primochill water cooling gear with EK waterblocks Windows 8.1 Dell 24" ultrasharp Corsair Mechanical 
PowerCaseMouseMouse Pad
Corsair AX 860i Corsair 900D Logitech proteus G502 Roccat Raivo 
AudioOther
Asus Xonar Phoebus Swan M50w 2.1 speaker system 
CPUMotherboardGraphics
i7 3770k Asus Maximus 6 Formula AC3 R9 290X 
  hide details  
Reply
post #456 of 3066
Quote:
Originally Posted by kot0005 View Post

Hi, Mountainlifer. The yellow bands show up on a lot of applications. Photoshop, windows image viewer, web browsers and Its quite noticeable in Fallout 4 where the horizon merges with the sky.

I took some photos of the imgur gradients with my camera for you. Do you see banding on the 2nd image? the blue one? Is the blue image a gradient because I don't see bands in solid blue screens.

http://imgur.com/a/VLPPw

You definitely have the blue banding issue. I just tried lowering the blue component in the osd and the screen turned yellow. So, that would explain the yellow banding on a grey gradient screen. You need to call Acer for a firmware update.

Also, I don't know why just that one image has banding and the other mixed color ones do not. However, I do see some banding on the blue-green mix.
post #457 of 3066
Quote:
Originally Posted by Mountainlifter View Post

You definitely have the blue banding issue. I just tried lowering the blue component in the osd and the screen turned yellow. So, that would explain the yellow banding on a grey gradient screen. You need to call Acer for a firmware update.

Also, I don't know why just that one image has banding and the other mixed color ones do not. However, I do see some banding on the blue-green mix.
I can only see the banding in some of those colours in the imgur link. No all of them. My monitor has a sept 2015 mfg date:( SUx
frown.gif
V 5 - Caselabs
(17 items)
 
V4
(18 items)
 
V3
(3 items)
 
CPUMotherboardGraphicsRAM
i7 4790K Maximus VII Formula EVGA GTX 980Ti Classified Crucial Ballistix Elite 
Hard DriveHard DriveHard DriveHard Drive
Samsung SM951 AHCI  Crucial MX 100 WD red Seagate 
CoolingMonitorKeyboardPower
Custom watercooling loop Asus ROG swift PG279Q Corsair k95 RGB MEchanical keyboard Corsair AX860i 
CaseMouseMouse PadAudio
Caselabs SMA8 Black logitech G502 Proteus  Razer firefly and corsair XXL Keyboard mouse mat. Swan M50w 2.1 channel sound system 
Audio
Asus Xonar Phoebus sound card 
CPUMotherboardGraphicsRAM
i7 4790k maximus VII formula Watchdogs GTX 980 Classified Crucial Ballistix Elite 1866 16gb 
Hard DriveHard DriveHard DriveHard Drive
Crucial MX 100 512GB WD red 3TB Seagate Barracuda 1TB Samsung 1TB 
CoolingOSMonitorKeyboard
Primochill water cooling gear with EK waterblocks Windows 8.1 Dell 24" ultrasharp Corsair Mechanical 
PowerCaseMouseMouse Pad
Corsair AX 860i Corsair 900D Logitech proteus G502 Roccat Raivo 
AudioOther
Asus Xonar Phoebus Swan M50w 2.1 speaker system 
CPUMotherboardGraphics
i7 3770k Asus Maximus 6 Formula AC3 R9 290X 
  hide details  
Reply
V 5 - Caselabs
(17 items)
 
V4
(18 items)
 
V3
(3 items)
 
CPUMotherboardGraphicsRAM
i7 4790K Maximus VII Formula EVGA GTX 980Ti Classified Crucial Ballistix Elite 
Hard DriveHard DriveHard DriveHard Drive
Samsung SM951 AHCI  Crucial MX 100 WD red Seagate 
CoolingMonitorKeyboardPower
Custom watercooling loop Asus ROG swift PG279Q Corsair k95 RGB MEchanical keyboard Corsair AX860i 
CaseMouseMouse PadAudio
Caselabs SMA8 Black logitech G502 Proteus  Razer firefly and corsair XXL Keyboard mouse mat. Swan M50w 2.1 channel sound system 
Audio
Asus Xonar Phoebus sound card 
CPUMotherboardGraphicsRAM
i7 4790k maximus VII formula Watchdogs GTX 980 Classified Crucial Ballistix Elite 1866 16gb 
Hard DriveHard DriveHard DriveHard Drive
Crucial MX 100 512GB WD red 3TB Seagate Barracuda 1TB Samsung 1TB 
CoolingOSMonitorKeyboard
Primochill water cooling gear with EK waterblocks Windows 8.1 Dell 24" ultrasharp Corsair Mechanical 
PowerCaseMouseMouse Pad
Corsair AX 860i Corsair 900D Logitech proteus G502 Roccat Raivo 
AudioOther
Asus Xonar Phoebus Swan M50w 2.1 speaker system 
CPUMotherboardGraphics
i7 3770k Asus Maximus 6 Formula AC3 R9 290X 
  hide details  
Reply
post #458 of 3066
V 5 - Caselabs
(17 items)
 
V4
(18 items)
 
V3
(3 items)
 
CPUMotherboardGraphicsRAM
i7 4790K Maximus VII Formula EVGA GTX 980Ti Classified Crucial Ballistix Elite 
Hard DriveHard DriveHard DriveHard Drive
Samsung SM951 AHCI  Crucial MX 100 WD red Seagate 
CoolingMonitorKeyboardPower
Custom watercooling loop Asus ROG swift PG279Q Corsair k95 RGB MEchanical keyboard Corsair AX860i 
CaseMouseMouse PadAudio
Caselabs SMA8 Black logitech G502 Proteus  Razer firefly and corsair XXL Keyboard mouse mat. Swan M50w 2.1 channel sound system 
Audio
Asus Xonar Phoebus sound card 
CPUMotherboardGraphicsRAM
i7 4790k maximus VII formula Watchdogs GTX 980 Classified Crucial Ballistix Elite 1866 16gb 
Hard DriveHard DriveHard DriveHard Drive
Crucial MX 100 512GB WD red 3TB Seagate Barracuda 1TB Samsung 1TB 
CoolingOSMonitorKeyboard
Primochill water cooling gear with EK waterblocks Windows 8.1 Dell 24" ultrasharp Corsair Mechanical 
PowerCaseMouseMouse Pad
Corsair AX 860i Corsair 900D Logitech proteus G502 Roccat Raivo 
AudioOther
Asus Xonar Phoebus Swan M50w 2.1 speaker system 
CPUMotherboardGraphics
i7 3770k Asus Maximus 6 Formula AC3 R9 290X 
  hide details  
Reply
V 5 - Caselabs
(17 items)
 
V4
(18 items)
 
V3
(3 items)
 
CPUMotherboardGraphicsRAM
i7 4790K Maximus VII Formula EVGA GTX 980Ti Classified Crucial Ballistix Elite 
Hard DriveHard DriveHard DriveHard Drive
Samsung SM951 AHCI  Crucial MX 100 WD red Seagate 
CoolingMonitorKeyboardPower
Custom watercooling loop Asus ROG swift PG279Q Corsair k95 RGB MEchanical keyboard Corsair AX860i 
CaseMouseMouse PadAudio
Caselabs SMA8 Black logitech G502 Proteus  Razer firefly and corsair XXL Keyboard mouse mat. Swan M50w 2.1 channel sound system 
Audio
Asus Xonar Phoebus sound card 
CPUMotherboardGraphicsRAM
i7 4790k maximus VII formula Watchdogs GTX 980 Classified Crucial Ballistix Elite 1866 16gb 
Hard DriveHard DriveHard DriveHard Drive
Crucial MX 100 512GB WD red 3TB Seagate Barracuda 1TB Samsung 1TB 
CoolingOSMonitorKeyboard
Primochill water cooling gear with EK waterblocks Windows 8.1 Dell 24" ultrasharp Corsair Mechanical 
PowerCaseMouseMouse Pad
Corsair AX 860i Corsair 900D Logitech proteus G502 Roccat Raivo 
AudioOther
Asus Xonar Phoebus Swan M50w 2.1 speaker system 
CPUMotherboardGraphics
i7 3770k Asus Maximus 6 Formula AC3 R9 290X 
  hide details  
Reply
post #459 of 3066
Quote:
Originally Posted by kot0005 View Post

I can only see the banding in some of those colours in the imgur link. No all of them. My monitor has a sept 2015 mfg date:( SUx
frown.gif

Oh that sux indeed. The issue is well known, it was pointed out by TFT Central way back so to say, and I thought only early versions shipped to Germany had that v1 firmware. Are they selling the rest of the stock to Aussies?

I bought mine from UK, shipped to France, it has no banding issue as it seems most of us here have the v2 firmware. Also September 2015 as the manufacturing date.

That's not nice, knowingly selling defective firmware equipped units, knowing perfectly well they have issues and you have to send them back to flash to v2...


For those more in the scanlines issue, I'm going to post videos with close-ups later on tonight (for me).
post #460 of 3066
I was playing Fallout 4 last night, and whenever my frames dipped down into the low 40's I saw the scanlines easily. I kept telling myself it wasn't a big deal, but the fact that I kept on telling myself that meant that it was.

I bothered me quite a bit because I'd spent the weekend playing the game and had never noticed the lines. I asked myself if I'd taught myself to see the lines, or if they were becoming more pronounced.

After exiting the game, however, I realized that my overclock was on and set to 100Hz. I immediately disabled the overclock and went back into the game - thankfully, I couldn't see the sanlines any more. If you have the scanline issue, and you overclock to 100Hz, and if you dip below 60 FPS a lot, then you're going to see the lines in all your games.

I don't know what to think about this.

Yes, I can 'manipulate' the lines, but I feel that the monitor really isn't supposed to 'work' this way.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Monitors and Displays
Overclock.net › Forums › Components › Monitors and Displays › ACER Predator X34 Owners Club